Adding upstream version 4.2.2.upstream/4.2.2

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 248 insertions, 0 deletions

diff --git a/plugins/epan/wimax/msg_pmc.c b/plugins/epan/wimax/msg_pmc.c
new file mode 100644
index 00000000..7fe16e04
--- /dev/null
+++ b/plugins/epan/wimax/msg_pmc.c
@@ -0,0 +1,248 @@
+/* msg_pmc.c
+ * WiMax MAC Management PMC-REQ, PMC-RSP Message decoders
+ *
+ * Copyright (c) 2007 by Intel Corporation.
+ *
+ * Author: John R. Underwood <junderx@yahoo.com>
+ *
+ * Wireshark - Network traffic analyzer
+ * By Gerald Combs <gerald@wireshark.org>
+ * Copyright 1999 Gerald Combs
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
+
+/* Include files */
+
+#include "config.h"
+
+
+#include <epan/packet.h>
+#include "wimax_mac.h"
+
+extern	gboolean include_cor2_changes;
+
+void proto_register_mac_mgmt_msg_pmc_req(void);
+void proto_register_mac_mgmt_msg_pmc_rsp(void);
+void proto_reg_handoff_mac_mgmt_msg_pmc(void);
+static int dissect_mac_mgmt_msg_pmc_req_decoder(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data);
+static int dissect_mac_mgmt_msg_pmc_rsp_decoder(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data);
+
+static dissector_handle_t pmc_req_handle;
+static dissector_handle_t pmc_rsp_handle;
+
+static gint proto_mac_mgmt_msg_pmc_req_decoder = -1;
+static gint proto_mac_mgmt_msg_pmc_rsp_decoder = -1;
+
+static gint ett_mac_mgmt_msg_pmc_decoder = -1;
+
+/* Setup protocol subtree array */
+static gint *ett[] =
+{
+	&ett_mac_mgmt_msg_pmc_decoder,
+};
+
+/* PMC fields */
+static gint hf_pmc_req_pwr_control_mode_change = -1;
+static gint hf_pmc_req_pwr_control_mode_change_cor2 = -1;
+static gint hf_pmc_req_tx_power_level = -1;
+static gint hf_pmc_req_confirmation = -1;
+static gint hf_pmc_req_reserved = -1;
+static gint hf_pmc_rsp_start_frame = -1;
+static gint hf_pmc_rsp_power_adjust = -1;
+static gint hf_pmc_rsp_offset_BS_per_MS = -1;
+
+/* STRING RESOURCES */
+static const value_string vals_pmc_req_pwr[] = {
+	{0, "Closed loop power control mode"},
+	{1, "Reserved"},
+	{2, "Open loop power control passive mode"},
+	{3, "Open loop power control active mode"},
+	{0,				NULL}
+};
+
+static const value_string vals_pmc_req_pwr_cor2[] = {
+	{0, "Closed loop power control mode"},
+	{1, "Open loop power control passive mode with Offset_SSperSS retention"},
+	{2, "Open loop power control passive mode with Offset_SSperSS reset"},
+	{3, "Open loop power control active mode"},
+	{0,				NULL}
+};
+
+static const value_string vals_pmc_req_confirmation[] = {
+	{0, "MS requests to change the power control mode"},
+	{1, "MS confirms the receipt of PMC_RSP from BS"},
+	{0,				NULL}
+};
+
+/* Register Wimax Mac Payload Protocol and Dissector */
+void proto_register_mac_mgmt_msg_pmc_req(void)
+{
+	/* PMC fields display */
+	static hf_register_info hf[] =
+	{
+		{
+			&hf_pmc_req_confirmation,
+			{
+				"Confirmation", "wmx.pmc_req.confirmation",
+				FT_UINT16, BASE_DEC, VALS(vals_pmc_req_confirmation), 0x0020, NULL, HFILL
+			}
+		},
+		{
+			&hf_pmc_req_pwr_control_mode_change,
+			{
+				"Power control mode change", "wmx.pmc_req.power_control_mode",
+				FT_UINT16, BASE_DEC, VALS(vals_pmc_req_pwr), 0xC000, NULL, HFILL
+			}
+		},
+		{
+			&hf_pmc_req_pwr_control_mode_change_cor2,
+			{
+				"Power control mode change", "wmx.pmc_req.power_control_mode",
+				FT_UINT16, BASE_DEC, VALS(vals_pmc_req_pwr_cor2), 0xC000, NULL, HFILL
+			}
+		},
+		{
+			&hf_pmc_req_reserved,
+			{
+				"Reserved", "wmx.pmc_req.reserved",
+				FT_UINT16, BASE_DEC, NULL, 0x001F, NULL, HFILL
+			}
+		},
+		{
+			&hf_pmc_req_tx_power_level,
+			{
+				"UL Tx power level for the burst that carries this header", "wmx.pmc_req.ul_tx_power_level",
+				FT_UINT16, BASE_DEC, NULL, 0x3FC0, "When the Tx power is different from slot to slot, the maximum value is reported", HFILL
+			}
+		},
+		{
+			&hf_pmc_rsp_offset_BS_per_MS,
+			{
+				"Offset_BS per MS", "wmx.pmc_rsp.offset_BS_per_MS",
+				FT_FLOAT, BASE_NONE, NULL, 0x0, "Signed change in power level (incr of 0.25 dB) that the MS shall apply to the open loop power control formula in 8.4.10.3.2", HFILL
+			}
+		},
+		{
+			&hf_pmc_rsp_power_adjust,
+			{
+				"Power adjust", "wmx.pmc_rsp.power_adjust",
+				FT_FLOAT, BASE_NONE, NULL, 0x0, "Signed change in power level (incr of 0.25 dB) that the MS shall apply to its current transmission power. When subchannelization is employed, the SS shall interpret as a required change to the Tx power density", HFILL
+			}
+		},
+		{
+			&hf_pmc_rsp_start_frame,
+			{
+				"Start frame", "wmx.pmc_rsp.start_frame",
+				FT_UINT16, BASE_HEX, NULL, 0x3F00, "Apply mode change from current frame when 6 LSBs of frame match this", HFILL
+			}
+		}
+	};
+
+	proto_mac_mgmt_msg_pmc_req_decoder = proto_register_protocol (
+		"WiMax PMC-REQ Messages", /* name */
+		"WiMax PMC-REQ", /* short name */
+		"wmx.pmc_req" /* abbrev */
+		);
+
+	proto_register_field_array(proto_mac_mgmt_msg_pmc_req_decoder, hf, array_length(hf));
+	proto_register_subtree_array(ett, array_length(ett));
+	pmc_req_handle = register_dissector("mac_mgmt_msg_pmc_req_handler", dissect_mac_mgmt_msg_pmc_req_decoder, proto_mac_mgmt_msg_pmc_req_decoder);
+}
+
+/* Register Wimax Mac Payload Protocol and Dissector */
+void proto_register_mac_mgmt_msg_pmc_rsp(void)
+{
+	proto_mac_mgmt_msg_pmc_rsp_decoder = proto_register_protocol (
+		"WiMax PMC-RSP Messages", /* name */
+		"WiMax PMC-RSP", /* short name */
+		"wmx.pmc_rsp" /* abbrev */
+		);
+	pmc_rsp_handle = register_dissector("mac_mgmt_msg_pmc_rsp_handler", dissect_mac_mgmt_msg_pmc_rsp_decoder, proto_mac_mgmt_msg_pmc_rsp_decoder);
+}
+
+/* Decode PMC-REQ messages. */
+static int dissect_mac_mgmt_msg_pmc_req_decoder(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, void* data _U_)
+{
+	guint offset = 0;
+	proto_item *pmc_req_item;
+	proto_tree *pmc_req_tree;
+
+	{	/* we are being asked for details */
+
+		/* display MAC payload type PMC-REQ */
+		pmc_req_item = proto_tree_add_protocol_format(tree, proto_mac_mgmt_msg_pmc_req_decoder, tvb, 0, -1, "MAC Management Message, PMC-REQ");
+		/* add MAC PMC REQ subtree */
+		pmc_req_tree = proto_item_add_subtree(pmc_req_item, ett_mac_mgmt_msg_pmc_decoder);
+		/* display the Power Control Mode Change */
+		proto_tree_add_item(pmc_req_tree, hf_pmc_req_pwr_control_mode_change, tvb, offset, 2, ENC_BIG_ENDIAN);
+		/* show the Transmit Power Level */
+		proto_tree_add_item(pmc_req_tree, hf_pmc_req_tx_power_level, tvb, offset, 2, ENC_BIG_ENDIAN);
+		/* display the Confirmation/request */
+		proto_tree_add_item(pmc_req_tree, hf_pmc_req_confirmation, tvb, offset, 2, ENC_BIG_ENDIAN);
+		/* show the Reserved bits */
+		proto_tree_add_item(pmc_req_tree, hf_pmc_req_reserved, tvb, offset, 2, ENC_BIG_ENDIAN);
+	}
+	return tvb_captured_length(tvb);
+}
+
+/* Decode PMC-RSP messages. */
+static int dissect_mac_mgmt_msg_pmc_rsp_decoder(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, void* data _U_)
+{
+	guint offset = 0;
+	proto_item *pmc_rsp_item;
+	proto_tree *pmc_rsp_tree;
+	guint8 pwr_control_mode;
+	gint8 value;
+	gfloat power_change;
+
+	{	/* we are being asked for details */
+
+		/* display MAC payload type PMC-RSP */
+		pmc_rsp_item = proto_tree_add_protocol_format(tree, proto_mac_mgmt_msg_pmc_rsp_decoder, tvb, 0, -1, "MAC Management Message, PMC-RSP");
+		/* add MAC PMC RSP subtree */
+		pmc_rsp_tree = proto_item_add_subtree(pmc_rsp_item, ett_mac_mgmt_msg_pmc_decoder);
+
+		/* display the Power Control Mode Change */
+		if (include_cor2_changes)
+			proto_tree_add_item(pmc_rsp_tree, hf_pmc_req_pwr_control_mode_change_cor2, tvb, offset, 2, ENC_BIG_ENDIAN);
+		else
+			proto_tree_add_item(pmc_rsp_tree, hf_pmc_req_pwr_control_mode_change, tvb, offset, 2, ENC_BIG_ENDIAN);
+		/* display the Power Adjust start frame */
+		proto_tree_add_item(pmc_rsp_tree, hf_pmc_rsp_start_frame, tvb, offset, 2, ENC_BIG_ENDIAN);
+		pwr_control_mode = 0xC0 & tvb_get_guint8(tvb, offset);
+		offset++;
+
+		value = tvb_get_gint8(tvb, offset);
+		power_change = (float)0.25 * value;  /* 0.25dB incr */
+		/* Check if Power Control Mode is 0 */
+		if (pwr_control_mode == 0) {
+			/* display the amount of power change requested */
+			proto_tree_add_float_format_value(pmc_rsp_tree, hf_pmc_rsp_power_adjust, tvb, offset, 1, power_change, " %.2f dB", power_change);
+		} else {
+			/* display the amount of MS power change requested */
+			proto_tree_add_float_format_value(pmc_rsp_tree, hf_pmc_rsp_offset_BS_per_MS, tvb, offset, 1, power_change, " %.2f dB", power_change);
+		}
+	}
+	return tvb_captured_length(tvb);
+}
+
+void
+proto_reg_handoff_mac_mgmt_msg_pmc(void)
+{
+	dissector_add_uint("wmx.mgmtmsg", MAC_MGMT_MSG_PMC_REQ, pmc_req_handle);
+	dissector_add_uint("wmx.mgmtmsg", MAC_MGMT_MSG_PMC_RSP, pmc_rsp_handle);
+}
+
+/*
+ * Editor modelines  -  https://www.wireshark.org/tools/modelines.html
+ *
+ * Local variables:
+ * c-basic-offset: 8
+ * tab-width: 8
+ * indent-tabs-mode: t
+ * End:
+ *
+ * vi: set shiftwidth=8 tabstop=8 noexpandtab:
+ * :indentSize=8:tabSize=8:noTabs=false:
+ */